Q: Based on our value of H0 derived above, what is the age of the universe? Using the value of H0 = 1.6 x 10^(-17) (1/s), the reciprocal is equal to age approx 6.2 x 10^(16) seconds approx 2.0 x 10^(9) years Q: Do you see any problems with this age? A value of 2 billion years seems a bit small. There is strong evidence that the Earth is about 4.5 billion years old, and a number of stars are around 10 billion years old.